Colloquium: Claudia Felser on Magnetic Materials
Claudia Felser, Max Planck Institute For Chemical Physics of Solids
Magnetic Materials and Topology
Abstract: Topology, a mathematical concept, recently became a hot and truly transdisciplinary topic in condensed matter physics, solid state chemistry and materials science. All 200 000 inorganic materials were recently classified into trivial and topological materials: topological insulators, Dirac, Weyl and nodal-line semimetals, and topological metals . Around 20% of all materials host topological bands. Currently, we have focused also on magnetic materials, a fertile field for new since all crossings in the band structure of ferromagnets are Weyl nodes or nodal lines , as for example Co 2 MnGa and Co 3 Sn 2 S 2 . Beyond a single particle picture and identified antiferromagnetic topological materials .
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